Added access to user activity from staff profile

refs. https://github.com/TryGhost/Toolbox/issues/356

- administrators needed a quick way to access the Audit log prefiltered for a given user from the user's staff profile page

ghost/admin/app/templates/settings/staff/user.hbs

@@ -25,7 +25,7 @@
         {{/if}}
 
         <section class="view-actions">
-            {{#if this.userActionsAreVisible}}
+            {{#if (or this.userActionsAreVisible this.session.user.isAdmin)}}
                 <span class="dropdown">
                     <GhDropdownButton @dropdownName="user-actions-menu" @classNames="gh-btn gh-btn-white gh-btn-icon icon-only user-actions-cog" @title="User Actions" data-test-user-actions={{true}}>
                         <span>
@@ -68,6 +68,11 @@
                                 </li>
                             {{/if}}
                         {{/if}}
+                        <li>
+                            <LinkTo @route="settings.audit-log" @query={{hash user=user.id}}>
+                                <span>View user activity</span>
+                            </LinkTo>
+                        </li>
                     </GhDropdown>
                 </span>
             {{/if}}